Antibody formulations and methods for treating AL amyloidosis

1. A method of therapeutically treating a human patient having AL amyloidosis characterized by the presence of amyloid protein fibrils, the method comprising administering to the patient an effective dosage of a reconstituted lyophilized formulation of a humanized version of antibody 2A4 (ATCC Accession Number PTA-9662) or antibody 7D8 (ATCC Accession Number PTA-9468) or antigen-binding fragment thereof comprising:

(a) the antibody at a concentration of about 10 mg/ml;

(b) a histidine buffer at a concentration of about 25 mM;

(c) trehalose at a concentration of about 230 mM;

(d) polysorbate 20 at a concentration of about 0.2 g/L; and

wherein the reconstituted formulation has a pH of about 6.5.

2. The method of claim 1 , wherein the human patient is also treated with at least one second drug selected from the group consisting of melphalan, bortezomib, lenolidomide or carfilzomib.

3. The method of claim 2 , wherein the at least one second drug is bortezomib.

4. The method of claim 1 , wherein the AL amyloidosis is associated with a dyscrasia of the B lymphocyte lineage.

5. The method of claim 4 , wherein the dyscrasia is a malignancy.

6. The method of claim 5 , wherein the malignancy is multiple myeloma.

7. The method of claim 1 , wherein the reconstituted formulation is administered to the human patient at a frequency in a range of about daily to about annually.

8. The method of claim 7 , wherein the reconstituted formulation is administered to the human patient once every twenty-eight days.

9. The method of claim 8 , wherein at least one second drug is administered to the human patient at a frequency of daily to annually.

10. The method of claim 9 , wherein the at least one second drug is administered to the human patient once every seven days.

11. The method of claim 1 , wherein the formulation is administered to the human patient in a dose ranging from 0.5 mg of antibody per kg body weight of the human patient to 30 mg of antibody per kg of body weight of the patient.

12. The method of claim 11 , wherein the formulation is administered to the human patient in a dose ranging from 20 mg of antibody per kg body weight of the human patient to 30 mg of antibody per kg of body weight of the patient.

13. The method of claim 12 , wherein the formulation is administered to the human patient in a dose of 25 mg of antibody per kg body weight of the human patient.

14. The method of claim 1 , wherein the formulation is administered to the human patient in a dose ranging from 10 mg of the antibody to 5000 mg of the antibody.

15. The method of claim 14 , wherein the formulation is administered to the human patient in a dose ranging from 30 mg of the antibody to 2500 mg of the antibody.

16. The method of claim 1 , wherein the antibody comprises a light chain variable region comprising an amino acid sequence set forth as SEQ ID NO: 4 and a heavy chain variable region comprising an amino acid sequence set forth as SEQ ID NO: 5.

17. The method of claim 1 , wherein the antibody comprises a light chain comprising an amino acid sequence set forth as SEQ ID NO: 13 and a heavy chain comprising an amino acid sequence set forth as SEQ ID NO: 15.

18. A method of therapeutically treating a human patient having AL amyloidosis characterized by the presence of amyloid protein fibrils, the method comprising administering to the patient an effective dosage of a reconstituted lyophilized formulation comprising:

(a) an antibody comprising a light chain comprising an amino acid sequence set forth as SEQ ID NO: 13 and a heavy chain comprising an amino acid sequence set forth as any one of SEQ ID NOs: 14-16, and which is present at a concentration of 50 mg/mL;

(b) a histidine buffer present at a concentration of 25 mM;

(c) trehalose present at a concentration of 230 mM;

(d) polysorbate 20 present at a concentration of 0.2 g/L; and

wherein the reconstituted formulation has a pH of 6.5.

19. The method of claim 18 , wherein the reconstituted lyophilized formulation is administered to the human patient in a dose comprising 25 mg of antibody per kg body weight of the human patient.

20. The method of claim 19 , wherein the reconstituted lyophilized formulation is administered to the human patient once every 28 days.

21. The method of claim 20 , wherein the reconstituted lyophilized formulation is administered to the human patient with bortezomib.

22. The method of claim 21 , wherein the bortezomib is administered to the human patient every seven days.

23. A method of therapeutically treating a human patient having AL amyloidosis characterized by the presence of amyloid protein fibrils, the method comprising administering to the patient an effective dosage of a reconstituted lyophilized formulation comprising:

(a) an antibody comprising a light chain comprising an amino acid sequence set forth as SEQ ID NO: 13 and a heavy chain comprising an amino acid sequence set forth as any one of SEQ ID NOs: 14-16, and which is present at a concentration of 50 mg/mL;

(b) a histidine buffer present at a concentration of 25 mM;

(c) trehalose present at a concentration of 230 mM;

(d) polysorbate 20 present at a concentration of 0.2 g/L;

wherein the reconstituted formulation has a pH of 6.5; and

wherein the reconstituted lyophilized formulation is administered to the human patient in a dose comprising 25 mg of antibody per kg body weight of the human patient once every 28 days and bortezomib is administered to the human patient every seven days.